Added type id range used by IECoreMaya.
Added type id range used by IECoreMaya.


appleseedhq/cortex,davidsminor/cortex,danieldresser/cortex,hradec/cortex,lento/cortex,hradec/cortex,goddardl/cortex,goddardl/cortex,lento/cortex,davidsminor/cortex,danieldresser/cortex,goddardl/cortex,danieldresser/cortex,lento/cortex,appleseedhq/cortex,hradec/cortex,danieldresser/cortex,davidsminor/cortex,davidsminor/cortex,appleseedhq/cortex